package cn.xuewenbao.manage.service;

import cn.xuewenbao.manage.entity.Member;
import com.baomidou.mybatisplus.extension.service.IService;

/**
 * @Description: member
 * @Author: mafayu
 * @Date:   2021-09-23
 * @Version: V1.0
 */
public interface IMemberService extends IService<Member> {

    String getUserNameById(String userId);
}
